Understanding Postal: Biggest Rate Case Threat? Regulatory Changes

Also, Cycle L certification requires that all address databases be run against the LACSLink (Locatable Address Conversion System). The Postal Service uses the LACSLink file to convert rural addresses to city-style addresses and to update other address changes made by municipal authorities.

In July 2009, things will get more strict. Again, your addresses must be run through the CASS process. All addresses will have to be DPV-certified, and all addresses must be run against the LACSlink file. But here’s the kicker: If your addresses aren’t up to snuff, you’ll lose postage discounts for those pieces that wind up flunking address certification. They will be mailable only at the single-piece First Class mail rate.